college. >> lock down, lock down, lock down. >> those two words mean an intruder is on campus. >> maria, open the door. where are you! >> this is how they deal with an active shooter. >> oh, wendy, i'm home, dear! open the door. >> the people behind the door tried to barricade themselves using what they can find, a table, a rope, anything to keep the intruder from coming in. >> people will survive, people will act appropriately if we give them guidance and if we give them permission to do so and that's what this is about. >> a texas-based company called response options is training people on how to go beyond the duck-and-cover mode. teaching them to go as far as confronting the gunman. joe is playing the role of the active gunmen. people who are taking this course are learning three fundamental things, run, hide, and fight.